Rollable Display Timing Controller Dynamic Resolution
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Solution Overview
Problem
Rollable display devices face a decrease in memory utilization due to a fixed spatial resolution or bit depth, which affects the image processing capability, especially in frequently used display areas with varying shapes.
Innovation Solution
A display device with a timing controller that detects changes in the display area and adjusts the pixel spacing and compensation data resolution accordingly, allowing for dynamic variation of spatial processing resolution and bit depth to enhance image processing capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed spatial resolution and bit depth are used for compensation data processing, then the memory structure remains simple and implementation is straightforward, but memory utilization decreases and image processing capability is limited when the display area changes
Solution Approach 1:
The patent implements dynamic adjustment of spatial resolution and bit depth for compensation data based on the current display area size. When the display area changes (e.g., during scrolling or folding), the system automatically varies the processing resolution and data depth, transitioning from a static fixed-resolution approach to a dynamic adaptive approach that optimizes image processing capability for each display state
Solution Approach 2:
The system changes key parameters (spatial resolution and bit depth) of the compensation data according to the display area size. Specifically, when the display area decreases, the spatial resolution of compensation data is increased and bit depth is extended, allowing the same hardware to achieve different processing capabilities by varying data parameters rather than changing physical hardware configuration
2Measurement precision
If the display area is reduced to focus on frequently used areas, then the visible resolution can be maintained, but the memory utilization and processing resolution for compensation data decrease
Solution Approach 1:
The patent applies different processing resolutions and bit depths to different regions or contexts. When the display area is reduced, the system allocates higher spatial resolution and extended bit depth specifically to the compensation data for the active display region, while maintaining lower processing requirements for inactive areas. This localized quality enhancement ensures high compensation precision where needed without uniformly increasing complexity across the entire display
3Reliability
If the spatial resolution of compensation data is increased to improve image processing capability, then the definition of frequently used display area improves, but the memory requirements and processing complexity increase
Solution Approach 1:
Rather than maintaining high resolution compensation data at all times, the system dynamically adjusts the spatial resolution and bit depth of compensation data based on the current display area size. When the display area is small, higher resolution is applied; when the display area is large, lower resolution suffices. This dynamic adjustment optimizes memory utilization by allocating processing resources only when and where they are needed, improving reliability without constant high memory consumption
Data Source
AI summary
The present disclosure relates to a display device capable of improving image processing capability by varying a spatial processing resolution of a bit depth of data according to change in a display area, and a display device according to an embodiment includes: a panel including a display area composed of a plurality of pixels and having a variable physical shape; a panel driver for driving the panel; and a timing controller for varying the area of a first display area in which an image is displayed in the display area according to change in the shape of the panel when the change in the shape of the panel is detected through a sensor and varying a distance between pixels on which compensation processing is performed in pixels corresponding to the first display area in response to the varied area of the first display area.